\[\boxed{\mathbf{3.}\mathbf{326}}\]
Пояснение.
Решение.
\[\textbf{а)}\ 2^{5} = 32\]
\[\textbf{б)}\ 11^{2} = 121\]
\[\textbf{в)}\ 10^{6} = 1\ 000\ 000\]
\[\textbf{г)}\ 1^{15} = 1\]
\[\textbf{д)}\ 100^{4} = 100\ 000\ 000\]
\[\textbf{е)}\ 20^{7} = 2^{7} \cdot 10^{7} =\]
\[= 128 \cdot 10\ 000\ 000 =\]
\[= 1\ 280\ 000\ 000\ \]